CLEAR
Toprankers-Info

+91 7676564400

Mobile App

Get it on Google Play
Discussions
Select Date
Tags:

Articles

Discussions
Submit Discussion
HEMANT KUMAR

· started a discussion

· 1 Months ago

explaination (Question: 190645.0 )

please explain

Question:
The perimeter of the triangular base of a right prism is 15 cm and radius of the incircle of the triangular base is 3 cm. If the volume of the prism be 270 cm 3, then the height of the prism is :
Options:
A) 6 cm
B) 7.5 cm
C) 10 cm 
D) 12 cm
Solution:
Ans: (d)


Knowledge Expert

· commented

· 1 Months ago

Dear student,

Please observe the figure, here with the help of radius of incircle we consider is as a height of triangle. Now area of rectangle base is calculated by area of three triangle ( 1/2 base*height) after calculation we get 45/2 cm^2. please see in solution
then
Volume of prism = area of base triangle * height
270=45/2*h
h=12 cm

Keep learning with us!!
Best wishes
Team Toprankers

Knowledge Expert

· commented

· 1 Months ago

Yet to be approved!
-logo
We at aim to provide most comprehensive content & test for practice which is carefully divided into various chapters and topics to help you focus on your weak areas.Our Practice mock test gives you unmatched analytics to help you realize your strong areas,time management and improvement areas.Our Short & Crisp notes on each topic will help you to quickly revise the topic along with the tips & tricks of the exams.
More About
-Info
-Info

Mobile App

Get it on Google Play
About Us Campus Ambassador Careers Contact Us Refund Policy

All Rights Reserved Top Rankers

User Policy
Disclaimer
Terms & Conditions