Question

Write down short answers of given questions.
1.Find CSA of cylinder having radius 14cm and height 10cm. ?
2. The following marks were obtained by the students in a test:
81, 72, 90, 90, 86, 85, 92, 70, 71, 83, 89, 95, 85, 79, 62. What is range of the marks?
3. If the mean of x, x+2, x+4, x+6 and x+8 is 11, then what is the value of x ?
.
14. What is the mode of the observations 11, 8, 10, 8, 15, 6, 7, 8, 12, 7 and 9?
5. The volumes of two hemispheres are in the ratio 27:125, What is the ratio of their
radii?
6. Construct angle of 1200 without using protractor.
7. In quadrilateral PQRS, if <P = 60° and ZQ : ZR: ZS = 2:3:7, then find the measure
of ZS ?
8. Enlist various criteria's of congruency of two triangles.
9. Find median of following data: 2,2,3, 5, 7, 9, 9, 10, 11
10. Prove that angle in the semi-circle is right angle.
*if possible write it on paper then upload*​

Answer 1

Answer:

1) 6160 cm²

Step-by-step explanation:

sorry I could only give the 1st answer

Hope it helped!!

plz mark as Brainliest

Answer 2

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Find the odd one...