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Ira Lisetskai [31]
3 years ago
7

Please help need quickly

Mathematics
1 answer:
VLD [36.1K]3 years ago
5 0

Answer: 23 ft (approximately)

==========================================================

Explanation:

Draw out a diagram as I've done so below. The unknown side x is opposite the reference angle 68. The hypotenuse (ladder length) is 25.

We'll use the sine rule

sin(angle) = opposite/hypotenuse

sin(68) = x/25

25*sin(68) = x

x = 25*sin(68)

x = 23.1795963641697

x = 23

The ladder reaches approximately 23 feet up on the wall.

I'm rounding to the nearest whole number because the other values given to you were also whole numbers. If your teacher says to round otherwise, then follow those instructions instead.

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9.
Hitman42 [59]

the answer is 4.5 ft

Step-by-step explanation:

Step-by-step explanation:

Given that the two fugures in the question above are similar, it means they have the same shape, even though they are if different sizes, the ratio of their corresponding sides are proportional. Thus,

18/x = 8/2

Let's solve for x as required.

We have,

18/x = 8/2

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3 years ago
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