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What is the length of x in the diagram below? topic test!!

What is the length of x in the diagram below? topic test!!-example-1
User VinayC
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2 Answers

3 votes

Answer:

D edge

Explanation:

User Tdgtyugdyugdrugdr
by
7.8k points
2 votes

see the attached figure with letters to better understand the problem

Step 1

Find the length of BD

we know that

In the right triangle ABD

BD=AD ------> because is a
45\°-90\°-45\° triangle

so


BD=5\ units

Step 2

Find the length of BC

In the right triangle BCD


sin(30\°)=(BD)/(BC)

we have


sin(30\°)=(1)/(2)


BD=5\ units


BC=x\ units

substitute the values and solve for x


(1)/(2)=(5)/(x)\\ \\x=5*2 \\ \\x=10\ units

therefore

the answer is

The length of x is
10\ units

What is the length of x in the diagram below? topic test!!-example-1
User Edyn
by
8.5k points

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