Find the area of the triangles, multiply that value by 4. Then add that sum to the surface area of the base. The total surface area is equal to 28.
Answer:
9ft
Step-by-step explanation:
The top of a ladder is placed against the side of a house. The ladder is 15ft long and the wall is 12ft high. How far from the wall will the base of the ladder be positioned if the top of the ladder meets the top of the wall.
We solve this question using Pythagoras Theorem
c² = a² + b²
Height of the wall = Opposite side = b = 12ft
Length of the ladder = Hypotenuse = c = 15ft
Distance between the wall and the base of the Ladder = Adjacent = a
Hence:
15² = a² + 12²
a² = 15² - 12²
a = √15² - 12²
a = √81
a = 9 ft
Therefore, the wall will be 9ft from the base of the ladder , if the top of the ladder meets the top of the wall
The area of the portion of the field that has crops growing is 4.125 × 10^6.
The answer in scientific notation with the correct number of significant digits is 4.125 × 10^6.
The number of significant numbers was based on the calculation.
<h3>How to calculate that area?</h3>
From the information, the rectangle with the bottom labeled 2.5 times 10 cubed feet and the right side labeled 3.3 times 10 cubed feet.
The area of the portion of the field that has crops growing will be:
= 1/2 × 2.5 × 10³ × 3.3 × 10³
= 4.125 × 10^6
Therefore, the answer in scientific notation with the correct number of significant digits is 4.125 × 10^6 and the number of significant numbers was based on the calculation.
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