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2 years ago

What's the formula for a triangle if your trying to find the area?

Mathematics

1 answer:

Minchanka [31]2 years ago

6 0

Answer:

$A=\frac{1}{2}bh$

Step-by-step explanation:

In the formula listed above, "A" represents the area of the triangle, "b" represents the base of the triangle, and "h" is the height/altitude of the triangle.

This makes sense because the area of a square is base*height and a triangle is half of a square.

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A 20 foot ladder leaning against a wall is used to reach a window that is 17 feet above the ground. How far from the wall is the

GarryVolchara [31]

The bottom of the ladder is 10.5 feet away from the wall

Step-by-step explanation:

The given scenario forms a right triangle.

Where

The length of ladder will be the hypotenuse

The wall on which the window is situated will ebt he perpendicular and

The distance between the foot of ladder and the wall will be the base

So,

Hypotenuse = H = 20 foot

Perpendicular = P = 17 feet

Base = B = ?

Using the Pythagoras theorem

$H^2=P^2+B^2\\(20)^2=(17)^2+B^2\\400=289+B^2\\400-289=B^2\\B^2=111\\Taking\ square\ root\ on\ both\ sides\\\sqrt{B^2}=\sqrt{111}\\B=10.53\\Rounding\ off\ to\ the\ nearest\ tenth\\B=10.5$

The bottom of the ladder is 10.5 feet away from the wall

Keywords: Triangle, Pythagoras Theorem

Learn more about Pythagoras theorem at:

#LearnwithBrainly

8 0

3 years ago

Madison had $187.56 in her checking account. She deposited $49.73 and then used her debit card to spend $18.64. What is Madison'

MrRa [10]

187.56 - 46.73 then subtract 18.64
simple

5 0

4 years ago

Read 2 more answers

Which line represents the axis of symmetry?

Molodets [167]

Answer:

x=3

Notice how the line is reflected at a vertical line (not shown) at (3, 0)

Therefore x=3 since that is the line where the reflection occurs.

Step-by-step explanation:

6 0

3 years ago

How do I solve -7+m=8?

Morgarella [4.7K]

Answer:

m = 15

Step-by-step explanation:

to evaluate for the expression -7+m=8?

solution

-7+m=8?

collect the like terms

m = 8 + 7

m = 15

5 0

4 years ago

Simplify the fraction

kenny6666 [7]

4t^2 - 16 t - 2
------------ / -----------
8 6

4(t^2 -4) 6
=------------ . -----------
8 t - 2

(t+2)(t-2) 6
=------------ . -----------
2 t - 2

= 3 (t+2)
or
= 3t + 6

6 0

3 years ago