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Naily [24]
3 years ago
9

The lengths of the diagonals of a rhombus are 2 inches and 5 inches. Find the measures of the angles of the rhombus to the neare

st degree.
Mathematics
1 answer:
Radda [10]3 years ago
4 0
2arctan(2/5) = 44°
180° -44° = 136°

The angles are 44°, 136°.
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Is it possible to create two triangles with congruent side lengths but different angle measurements?
kotykmax [81]
Yes. If the side lengths are different, you can end up with different angle measurements (example: SSA~ property. You can have two sides that are the same but you can make two different triangles with those side lengths and that one angle.)
8 0
3 years ago
One mirror is to be in the shape of a triangle whose height is 6 feet less than twice the base of the mirror. If the mirror has
Vlad1618 [11]

Answer:

Base of the mirror is 12 feet and height of the mirror is 18 feet.

Step-by-step explanation:

Given:

Area of the triangular mirror = 108 sq ft.

Let base (b) of the mirror be x.

Now given:

height is 6 feet less than twice the base of the mirror

So we can say that;

Height (h) = 2x-6

We need to find the base and height of the mirror.

Solution:

Now we know that mirror is in triangular shape so we will apply area of triangle formula to find base and height.

Now Area of triangle is half times base times height.

framing in equation form we get;

108=\frac{1}{2} \times x \times(2x-6)\\\\108=\frac{1}{2}\times x \times 2(x-3)\\\\108=x(x-3)\\\\108=x^2-3x\\\\x^2-3x-108=0

Now we will find the roots of x by factorizing the equation we get;

x^2-12x+9x-108=0\\\\x(x-12)+9(x-12)=0\\\\(x-12)(x+9)=0

Now we will solve for 2 values of x we get;

x-12=0\\\\x=12\ ft\\\\Also;\\\\x+9=0\\\\x=-9\ ft

Now we get 2 values of 'x' one positive and one negative.

Since x is base of the triangle which cannot be negative.

so we will discard the negative value.

Hence;

base of triangle = 12 ft

Height of the triangle = 2x-6=2\times12-6 =24-6 =18\ ft

Hence Base of the mirror is 12 feet and height of the mirror is 18 feet.

7 0
3 years ago
What is the rectangular form of z = 6(cos((3pi)/4) + i sin((3pi)/4))
kvv77 [185]

Answer:

Z= -3 square root 2 + 3i square root 2

Step-by-step explanation:

4 0
3 years ago
A rock climber descended 50 feet to a new elevation of 32 feet. What was her initial elevation, e?
alina1380 [7]

Answer:

82 feet

Step-by-step explanation:

50 feet + 32 feet = 82 feet

6 0
3 years ago
Write an expression that shows how to use the halving and doubling strategy to find 28×50
eduard
Halving: 28 to 14 doubling: 50 to 100 answer: 14 × 100 = 1400
4 0
3 years ago
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