Curioustab

Home » Aptitude » Area

In a triangle ABC, BC = 5 cm AC = 12 cm and AB = 13 cm. The length of a altitude drawn from B on AC is?

4 cm
5 cm
6 cm
7 cm

Correct Answer: 5 cm

Explanation:

∵ s= (13 + 5 + 12) / 2 cm
= 15cm
s-a = 2 cm,
s-b = 10 cm and
s-c = 3 cm
⇒ Area = √ (15 x 2 x 10 x 3 ) cm²
= 30 cm²
⇒ (12 x h) / 2 = 30
∴ h = 5 cm

← Previous Question Next Question→

More Questions from Area

The perimeter of an isosceles triangle is equal to 14 cm . The lateral side is to the base in the ratio 5 : 4 the area of the triangle is?
The sides of a triangular board are 13 meters, 14 meters and 15 meters. The cost of paining it at the rate of Rs. 8.75 per m 2 is?
If the diagonal of a square is double, how does the area of the square change?
A circle and a square have same area. The ratio of the side of the square and the radius of the circle is?
The radius of the wheel of a vehicle is 70 cm. The wheel makes 10 revolutions in 5 seconds. The speed of the vehicle is?
A circular disc of area 0.49 π square meters, rolls down a length of 1.76 km. The number of revolutions it makes is?
The Number of rounds that a wheel of diameter 7/11 m will make in going 4 km, is?
A wheel makes 1000 revolutions in covering a distance of 88 km. the diameter of the wheel is?
The diameter of a wheel is 63 cms. Distance travelled by the wheel in 100 revolutions is?
A circular road runs rounds a circular ground. If the difference between the circumference of the outer circle and the inner circle is 66 meters, the width of the road is?

Discussion & Comments

No comments yet. Be the first to comment!

Join Discussion