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laiz [17]
3 years ago
7

What is the triangle's base, b?

Mathematics
2 answers:
Oksi-84 [34.3K]3 years ago
4 0

Answer:

6.928 or 6.93

Step-by-step explanation:

\sqrt{8^{2}-4^{2}}

ella [17]3 years ago
4 0

Answer:

The triangle's base is 9 inches.

Step-by-step explanation:

The area of a triangle is calculated with the base × perpendicular height × \frac{1}{2}.

We already know the area is 18 square inches and the perpendicular height is 4 inches, so we can calculate the base.

4 × b × \frac{1}{2} = 18

2 × b = 18

b = 18 ÷ 2

b = 9

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Can you think of another combination of triangle classification that is impossible?
cestrela7 [59]
How about an equilateral right triangle or equiangular right triangle hope this helps
3 0
3 years ago
Bethany and her brother ben decided to go through a corn maze. Bethany starts and walks 10 feet north, 30 feet west and then 20
Westkost [7]

Answer:

About 60.77 feet

Step-by-step explanation:

Attached pic.

Blue line is of Bethany

Green line is of Ben

Red line is the distance between them [what we are trying to find]

We can use pythagorean theorem that tells us:

c^2=a^2+b^2

Where c is the hypotenuse of the right triangle [red lines in both respective triangles]

and

a, b are the two other sides of the triangle

Left Triangle (using pythagorean theorem):

Base is 30

Left side is 20 - 10 = 10

So,

c^2=30^2+10^2\\c=\sqrt{30^2+10^2} \\c=31.62

Right Triangle (using pythagorean theorem):

c^2=25^2 + 15^2\\c=\sqrt{25^2 + 15^2} \\c=29.15

Distance between Bethany and Ben = 31.62 + 29.15 = 60.77 feet

3 0
3 years ago
Solve the question below using two different methods.
Tatiana [17]
Sold 17 tulips and 76 roses. tulips is equal to x and roses are equal to 4x+8. Then multiply by the amount they cost and then tulips are 2x and roses are 20x+40. They add together to get 414. 2x=20x=40=414. Solve. x=17. X is equal to the amount of tulips.
6 0
3 years ago
If i get paid 7$ plus 15% how much is that
Fynjy0 [20]
You will get paid $7.15
6 0
3 years ago
Given the line a and b are parallel angles 1 and5 are congruent because they are
kakasveta [241]

Answer:

Step-by-step explanation:

When two lines intersect they form two pairs of opposite angles, A + C and B + D. Another word for opposite angles are vertical angles.

figure51

Vertical angles are always congruent, which means that they are equal.

Adjacent angles are angles that come out of the same vertex. Adjacent angles share a common ray and do not overlap.

figure52

The size of the angle xzy in the picture above is the sum of the angles A and B.

Two angles are said to be complementary when the sum of the two angles is 90°.

figure53

Two angles are said to be supplementary when the sum of the two angles is 180°.

figure54

If we have two parallel lines and have a third line that crosses them as in the ficture below - the crossing line is called a transversal

When a transversal intersects with two parallel lines eight angles are produced.

figure55

The eight angles will together form four pairs of corresponding angles. Angles 1 and 5 constitutes one of the pairs. Corresponding angles are congruent. All angles that have the same position with regards to the parallel lines and the transversal are corresponding pairs e.g. 3 + 7, 4 + 8 and 2 + 6.

Angles that are in the area between the parallel lines like angle 2 and 8 above are called interior angles whereas the angles that are on the outside of the two parallel lines like 1 and 6 are called exterior angles.

Angles that are on the opposite sides of the transversal are called alternate angles e.g. 1 + 8.

All angles that are either exterior angles, interior angles, alternate angles or corresponding angles are all congruent.

Example

figure56

The picture above shows two parallel lines with a transversal. The angle 6 is 65°. Is there any other angle that also measures 65°?

6 and 8 are vertical angles and are thus congruent which means angle 8 is also 65°.

6 and 2 are corresponding angles and are thus congruent which means angle 2 is 65°.

6 and 4 are alternate exterior angles and thus congruent which means angle 4 is 65°.

4 0
3 years ago
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