Math, asked by anshub95, 1 year ago

plz answer it .... plzz

Attachments:

yajat1810: all
anshub95: 10 11 12

Answers

Answered by kalashyam
0
ans for questions 10:-
length of diagonal = √ a^2 + b^2 + c^2
5√3 = √ a^2 + (2√2)^2 + (3√2)^2
squaring on both side
75 = a^2 + 8 + 18
75 - 26 = a^2
49 = a^2
a = 7

question 11
if rectangular paper is rolled along its width then it's length becomes its circumference
length of paper = circumference of circle
and width is height
vol of cylinder = π r^2 h
= 3.14 × 20× 20 × 14
= 17584 cm 3
Answered by yajat1810
0
Question 10:-
diagonal of cuboid = √l^2+ b^2+h^2
=√l^2+(2√2)^2+(3√2)^2
5√3 = √l^2+8+18
5√3 = √l^2+26
(5√3)^2 = l^2+26
75 = l^2+26
l^2 = 75-26
l^2 = 49
l^2 = 7
Question 11:-
here width becomes height of the cylinder
volume = πr^2h
=22/7*20*20*14
= 22*20*20*2
=22*80
=1760 cm cube
Question 12:-
volume in cylindrical vessel = volume in rectangular vessel
πr^2h = lbH
22/7*8*8*h = 22*16*14
h = 22*16*14*7/22*1/8*1/8
h = 49/2
h = 24.5
please mark it as the brainliest
Similar questions