30 POINTS Please help with these 6th grade math question

Question

asked Mar 5, 2021 214k views

2 Answers

Oleg Eterevsky · Answer 1 · 2021-03-06T21:34:29+0000

Answer:

9) 45 cm²

10) 7 cm/ft²

Explanation:

9) ½(sum of // sides) × height

½(6 + 12) × 5

½(18) × 5

9 × 5

45 cm²

10) 28cm/4ft²

7 cm/ft²

Max Conway · Answer 2 · 2021-03-12T00:34:59+0000

Answer:

= 45 cm^2

7 cm per ft^2

Explanation:

The area of a trapezoid is found by

A = 1/2 (b1+b2)h

where b1 and b2 are the lengths of the bases and h is the height

A = 1/2(6+12)*5

A = 1/2 (18)5

= 45 cm^2

The unit rate is 28 cm/ 4 ft^2

7 cm per ft^2