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3 years ago

Picture question middle school math I will give brain list

Mathematics

1 answer:

Lilit [14]3 years ago

7 0

Answer:

C. 90ft²

Step-by-step explanation:

To find the area of a trapezoid, use the formula a = (b1 + b2)h ÷2

So when you put the numbers into the formula, you get (12 + 18) · 6 = 180 ÷ 2 = 90

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a woman 1.65. tall stood 50m away from the foot of a tower,and observe that the angle of elevation of the top of the tower to be

ElenaW [278]

$\sf\huge\underline{\star Solution:-}$

$\rightarrow$ Let the women's height be AE and distance between the women and tower be AC.

Also let the height of tower be BC.

$\rightarrow$ Now, clearly it is forming a triangle.

So, in triangle ABC,

$\rightarrow$ $\sf{Tan50° \:= \: \frac{BC}{AC}}$

$\rightarrow$ $\sf{1.19 \:= \: \frac{BC}{50}}$

$\rightarrow$ $\sf{1.19 ×50\:= \: BC}$

$\rightarrow$ $\sf{59.5m\:= \: BC}$

$\rightarrow$ Hence, BC = 59.5m

So, BD(total height of the tower) $\sf{ = \:BC+CD}$

$\sf{= \:59.5+1.65}$

$\sf{=\: 61.15m}$

Therefore, total height of the tower = $\sf\purple{ 61.15m.}$

________________________________

Hope it helps you:)

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liq [111]

Answer:

Step-by-step explanation:

because it has an equal sign

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