Height = 18 cm
The base is half as long means as height
base = height/2 = 18/2 =9 cm.
Area= base*height = 18*9 =162 cm²
Area=162 cm²
Answer:
<h3> 102 cm²</h3><h3 />
Step-by-step explanation:
area of a triangle = 1/2 * base * height
= 1/2 * 12 * 17
= 102 cm²
Answer: What do you mean? if you till me i can help you
Step-by-step explanation: