Question

What is the ratio of the area of ABC to the area of ABD ?

A . 3/5
B. 9/16
C. 8/15
D. 3/4

Answer 1

Answer: 9/16

Step-by-step explanation:

Using the area formula for a triangle, $A=\frac{1}{2}bh$, where b is the base and h is the height,

• The area of triangle ABC is $\frac{1}{2}(12)(9)=54$
• The area of triangle ABD is $\frac{1}{2}(12)(16)=96$

So, the ratio of the areas is $\frac{54}{96}=\boxed{9/16}$

Answer 2

Answer:

9/16

Step-by-step explanation:

got it right on the test.