Answer:
Step-by-step explanation:
Since Quadrilateral ABCD ~ PQRS, therefore:
Let's find the value of x by using the ratio of two corresponding sides of both quadrilaterals. Let's use:
CD = 5
RS = 4.5
DA = 4
SP = x
Cross multiply
Divide both sides by 5
We have the base measurement for the triangles composing the sides. We need their altitude.
Imagine a right triangle with these sides:
(1) from the apex of the pyramid to the point on the base directly underneath it (471 ft);
(2) from the middle of base edge to the point underneath the apex (half of 708 ft = 354 ft);
(3) the hypotenuse, the altitude of a triangular side.
Using the Pythagorean Theorem, we find the hypotenuse to be
√(471^2 + 354^2) = about 589.2 feet
Now we add up the four triangles' areas. Each is base * altitude / 2, so:
4 x 708 x 589.2 / 2
= 2 x 708 x 589.2
= 834,307.2 square feet, the lateral area.
<span>8+0.4+0.07+0.008 you basically separate the numbers starting with the largest working down to the smallest.
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Answer:
60
Step-by-step explanation:
(1.75+2*0.25+5*0.05)*24
(1.75+2*0.25+0.25)*24
(1.75+0.5+0.25)*24
2.5 * 24
60
