Question

Question 10

QRST is a parallelogram. Find a.
parallelogram QRST with side QT measuring 3 a plus 7 and RS measuring 4 a

15

12

7

9

Answer 1

a = 7

Step-by-step explanation:

We are given that the figure is a parallelogram.

In a parallelogram, each two opposite sides are equal.

This means that:

QT = RS

We are also given that:

QT = 3a + 7 and RS = 4a

Equating the two values, we will be able to solve for "a" as follows:

QT = RS

3a + 7 = 4a

4a - 3a = 7

a = 7

Hope this helps :)