Question
360 ÷ 4 ÷ 3 = 150 –
? What will come in the place of (?) mark in following questions?Solution
360 ÷ 4 ÷ 3 = 150 – ? => 150 - ? = 30 => ? = 150 – 30 => ? = 120
- In triangle ABC, a line DE is drawn parallel to side BC. If AD = 6 cm, DB = 4 cm, and AE = 9 cm, determine the length of AC.
- What is the average of the first eight triangular numbers?
Find the length of AC, if ΔABC ~ ΔRQP and BC = 21 cm, QP = 9 cm and RP = 15 cm.
What is the height of an equilateral triangle with a side length of 8√3 cm?
In ΔPQR, PQ = 4 cm, QR = 3 cm, and RP = 3.5 cm. ΔDEF is similar to ΔPQR. If EF = 9 cm, what is the perimeter of ΔDEF?
What is the height of an equilateral triangle with a side length of 10√2 cm?
In triangle ABC, DE is drawn parallel to BC, intersecting AB at D and AC at E. If AD : DB = 2 : 1 and area of triangle ADE is 24 cm², find:
(i) ...
The sides of a triangle are 13 cm, 14 cm, and 15 cm. What is the area of the triangle?
Find the area of a trapezium whose parallel sides are 12 cm and 18 cm and the distance between them is 9 cm.
- The base of a right pyramid is an equilateral triangle with side 12 cm. If the height of the pyramid is 40√3 cm, calculate the volume of the pyramid.
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