for question 1
Area of Base B =45×25 = 1125 cm²
perimeter of base P = 2(45+25) = 140 cm
Height = 15 cm
Using the formula
Surface area = 2B + Ph
A = 2×1125 + 140×15= 4350 cm²
Voume = Bh = 1125×15= 16875 cm³
For question 2,
Area of base = 7× 5/2= 17.5 cm²
Perimeter of base = (7+7+7) = 21 cm
Surface area of prism = 2×17.5+ 21×10 = 245cm²
Volume = Bh = 17.5×10 = 175 cm³
Step-by-step explanation:
do 51,416×4
ans is 245,664
It doesn't change because to add fractions, you need a common denominator. To find it, they multiplied 1/3 by 2 to make 2/6, to add to the 3/6.
1) , , , (given)
2) (reflexive property)
3) (SSS)
4) (CPCTC)
5) and are right angles (perpendicular lines form right angles)
6) and are right triangles (a triangle with a right angle is a right triangle)
7) (HA)
8) (CPCTC)
Answer:
