The surface area is 870 cm².
Since the base is a regular quadrilateral, each side is the same; dividing the perimeter by 4 will give us the side length:
60/4 = 15
To find the area, we square the side length:
15² = 225
There are two bases, so the area of these is 2(225) = 450
There are 4 lateral faces, so the lateral area is 4(105) = 420
Together, this gives us a total surface area of 870.
-2/3, -08,-3/5,-3/4...............
Answer: 11.1 m
Step-by-step explanation:
This can be solved by the Pythagorean theorem where;
c² = a² + b²
c is the hypotenuse which is the distance from the top of the building to the tip of the shadow.
a is the height
c is the length
32² = 30² + b²
b² = 32² - 30²
b² = 1,024 - 900
b² = 124
b = √124
b = 11.1 m
Answer:
they have to be congruent
Step-by-step explanation:
both rectangles have the same perimeter which means there Identical
Answer:
150 feet
Step-by-step explanation:
There are 10 marks between the 1st and 11th mark.
Since each mark represents 5 yards, 10 * 5 = 50 yards
Since 1 yard = 3 feet
50 yards = 50 * 3 = 150 feet
