Question

From the figure, how many square units are the area of ​​a triangle xwy when yw=zw?

A. 1.84
B. 1.42
C. 0.42
D. 0.84

Answer 1

0.42

Explanation:

→ Use Pythagoras to find YZ

√2.5² - 0.7² = 2.4

→ Half the answer to find YW

2.4 ÷ 2 = 1.2

→ Substitute the values into the formula for the area of a triangle

0.5 × 0.7 × 1.2 = 0.42