Can someone help me question 17? Pls I really need how I can solve this question???
1 answer:
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Answer:
meter
Step-by-step explanation:
We have to write first what is known from the information.
Let's say, length is L, width is W, and height is H
1. The length of the box is 2 1/2 m = 2,5 m = 5/2 m, it is 1 9/16 = 25/16 times it's width (L). So we have the equation :
L ≡
Then we find the W. From the fraction above, we found W equals to meter
2. What is the height of the box, if its volume is 12 3/4 m^3 = 51/4 m^3
Formula of a volume is :
The area wide times the height
In this problem, the equation is :
L × W × H = Volume
Insert the numbers,
×
× H =
From the fraction above, we can find that H equals to
meter
Answer:
Option C
Step-by-step explanation:
we know that
the surface area of a pyramid is equal to
where
B is the area of the base
LA is the lateral area
The area of the base B is
The lateral area is equal to
the surface area is equal to