Peter is covering a box to mail. The dimensions
1 answer:
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Answer:
C) 8 and 9
Step-by-step explanation:
We know that 70 is between two perfect squares.
The square numbers 64 and 81 can help us solve this question.
64<70<81
We take square root to get:
We simplify this to get:
Therefore √70 is between 8 and 9.
The correct option is C.
Answer:
Step-by-step explanation:
The composite figure consists of one rectangle and two triangles. We can add up the area of these individual shapes to find the total area of the irregular figure.
<u>Formulas</u>:
- Area of rectangle with base
and height
:
- Area of triangle with base
By definition, the base and height must intersect at a 90 degree angle.
The rectangle has a base of 10 and a height of 5. Therefore, its area is .
The smaller triangle to the left of the rectangle has a base of 2 and a height of 5. Therefore, its area is .
Finally, the larger triangle on top of the rectangle has a base of 5 and a height of 5. Therefore, its area is .
Thus, the area of the total irregular figure is: