menu
Qammunity.org
Login
Register
My account
Edit my Profile
Private messages
My favorites
Ask a Question
Questions
Unanswered
Tags
Categories
Ask a Question
20 POINTS!! a triangle has side lengths 20cm, 27cm, 21cm. is the triangle a right angle? show your work
asked
Dec 2, 2019
174k
views
0
votes
20 POINTS!!
a triangle has side lengths 20cm, 27cm, 21cm. is the triangle a right angle? show your work
Mathematics
college
Ryan Dines
asked
by
Ryan Dines
8.9k
points
answer
comment
share this
share
0 Comments
Please
log in
or
register
to add a comment.
Please
log in
or
register
to answer this question.
2
Answers
2
votes
use the Pythagoras Theorem
Chris Krycho
answered
Dec 4, 2019
by
Chris Krycho
7.2k
points
ask related question
comment
share this
0 Comments
Please
log in
or
register
to add a comment.
4
votes
20^2 + 21^2 = 27^2
400 + 441 = 729
881 = 729 (does not equal)
Not a right traingle
Neossian
answered
Dec 7, 2019
by
Neossian
7.3k
points
ask related question
comment
share this
0 Comments
Please
log in
or
register
to add a comment.
← Prev Question
Next Question →
Related questions
asked
Aug 14, 2022
102k
views
The perimeter of a triangle is 63m. Two of the sides are 20cm and 27cm. What is the length of the third side.
Michaelpri
asked
Aug 14, 2022
by
Michaelpri
9.7k
points
Mathematics
high-school
1
answer
4
votes
102k
views
asked
Apr 23, 2018
30.6k
views
Which three lengths of the sides of a triangle A. 9cm 14 cm 22cm B.20cm 6cm 8cm C.21cm 7cm 7cm D.15cm 5cm 20cm
Naquisha
asked
Apr 23, 2018
by
Naquisha
7.5k
points
Mathematics
high-school
1
answer
0
votes
30.6k
views
asked
Apr 24, 2020
104k
views
Anja is creating a triangle using 3 straws. The 2 shorter straws have lengths of 20cm and 21cm. How long, in centimeters, should the third straw be for anja to create a right triangle
Matt Crouch
asked
Apr 24, 2020
by
Matt Crouch
7.1k
points
Mathematics
high-school
2
answers
1
vote
104k
views
Ask a Question
Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.
9.4m
questions
12.2m
answers
Other Questions
How do you can you solve this problem 37 + y = 87; y =
What is .725 as a fraction
A bathtub is being filled with water. After 3 minutes 4/5 of the tub is full. Assuming the rate is constant, how much longer will it take to fill the tub?
i have a field 60m long and 110 wide going to be paved i ordered 660000000cm cubed of cement how thick must the cement be to cover field
Write words to match the expression. 24- ( 6+3)
Twitter
WhatsApp
Facebook
Reddit
LinkedIn
Email
Link Copied!
Copy
Search Qammunity.org