Question
There are total 200 students in a school, of which 1/5
are boys. Find the number of girls in the school.Solution
The correct answer is A
- The base of a right pyramid is an equilateral triangle with side 10 cm. If the height of the pyramid is 55√3 cm, calculate the volume of the pyramid.
- In triangle ABC, DE is drawn parallel to side BC. If AD = 6 cm, DB = 4 cm and AE = 9 cm, then find AC.
- Find the vertical height from a vertex to the base of an equilateral triangle with a side measuring 12√3 cm.
Two triangles DEF and XYZ are similar to each other. If DE = 5 cm, DF = 7 cm, and XY = 15 cm, then find XZ.
∠A, ∠B, and∠C are three angles of ∆ABC.if ∠A-∠B=15°, ∠B-∠C =30°,then ∠A, ∠B and ∠C are?
The ratio of the height to the base of a triangle is 3:2. If the sum of the height and base of the triangle is 25 cm, what is the area of the triangle?
An equilateral triangle has all sides of length 14√3 cm. What is the altitude of this triangle?
In a triangle, the lengths of two sides are 13 cm and 14 cm, and the included angle between them is 60°. Find the area of the triangle.
A triangle has sides 13, 14, 15. Find its area.
The area of a triangle is 480 cm² and the ratio of its sides is 10: 24: 26. What is the perimeter of the triangle?
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