Home
Class 9
MATHS
In triangleABC, AD is an altitude . If B...

In `triangleABC`, AD is an altitude . If BC=8 cm and ar (ABC)=40 `cm^2`, then AD= ______ cm.

A

5

B

10

C

15

D

20

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Topper's Solved these Questions

  • AREAS OF PARALLELOGRAMS AND TRIANGLES

    KUMAR PRAKASHAN|Exercise Skill Testing Exercise|12 Videos

  • BOARD'S SAMPLE QUESTION PAPERS (QUESTION PAPER 1 : FOR THE FIRST TEST)

    KUMAR PRAKASHAN|Exercise Section D (Solve the following) |4 Videos

Similar Questions

Explore conceptually related problems

ABCD is a rectangle . If AB=10 cm and ar(ABCD)=150 cm^2 , then BC=____ cm.

ABCD is a rectangle. If AB = 5 cm and BC = 12 cm. then BD= ……….cm

In parallelogram ABCD, AM is an altitude corresponding to base BC. If BC =8 cm and AM=6 cm, then ar(ABCD)=____ cm^2

ABCD is a rhombus . If AC=6cm and BD=9 cm, then ar(ABCD)=___ cm^2

In triangleXYZ , XZ is the hypotenuse. If XY = 8 cm and YZ=12 cm, then ar(XYZ)= ____ cm^2

ABCD is a square . If ar(ABCD)=36 cm^2 . Then AB=____ cm.

In DeltaABC , AD and BE are altitudes. If BC=8, AC=12 and AD=6, find ar (ABC) and BE.

In triangle ABC, AD is a median. Prove that AB + AC gt 2AD

In triangleABC , BC=10 cm and the length of altitude AD is 5 cm. Then , ar(ABC)=….. cm^2 .

In trianglePQR , PM is an altitude and QR is the hypotenuse. If QR=12 cm and PM=6 cm, then ar(PQR)=___ cm^2