Question

Plz Help!!

Evaluate. Multiply.
1. 1/2 (12)(6.7 + 8.3) 2. 1/2 (2.1)(1.1 + 5.7) =


Find the area of the figure.

3. A triangle with base 6 in. and height 5 in.

The area equals _____ in.2.

Answer 1

1) answer: 90

STEPS: 1/2 * 12 * (6.7 + 8.3)

6*(6.7+8.3)

6*15

90

2) answer: 7.14

STEPS: 1/2 * 2.1 * (1.1 + 5.7)

1/2 * 2.1 * 6.8

2.1 * 3.4

7.14

3) answer: 15

STEPS: area of triangle = 1/2 * base * height

1/2 * 6 * 5

3*5

15