Answer:
(Referring to the Washington monument) 15 feet
Step-by-step explanation:
According to the data provided by the government , The height of this monument is around 152.4 meters and the elevation of the base of Washington Monument on the National Mall is around 4.6 meters.
Since 1 feet is equal to : 0.3048 meters, the base of the monument in feet would be:
4.6 / 0.3048
= 15 Feet (approximately)
We compute for the surface area of the triangular prism by the adding the areas of the bases and the sides. There are two triangles and the areas will be,
A = 2 (1/2)(9 cm)(12 cm) = 108 cm²
There are three sides which are in rectangular shape.
A1 = (10)(12) = 120 cm²
A2 = (10)(9) = 90 cm²
A3 = (10)(15) = 150 cm²
The sum of these areas is 468 cm².
Well, I would just reverse it. It seems you just have to reverse the whole problem.
Answer:
the first question is 120. I cant see other options for the second question. The third question is 12.
Step-by-step explanation:
(m+5)(m-9)=0 is a valid equation.
