Question

Someone please help me with number 16

Answer 1

Answer:
Area of wall =
`94 (47)/(48)` ft

Step-by-step explanation:
First, we know that:
1 in = 1/12 ft
Therefore, the dimensions of the wall would be as follows:
H = 7 ft 10 in =
`7 (10)/(12)` ft
B1 = 10 ft 2 in =
`10 (2)/(12)` ft
B2 = 14 ft 1 in =
`14 (1)/(12)` ft

For the trapezium, area can be calculated using the following the following formula:
Area of trapezium = Average base * height =
`(B1 + B2)/(2)` * height

Substitute with the given to get the area as follows:
Area of wall = ([
`10 (2)/(12)` +
`14 (1)/(12)`] / 2) *
`7 (10)/(12)`
Area of wall =
`94 (47)/(48)` ft

Hope this helps :)