Question

Question 10 Which of the folowing statements is/are true A. A sphere bas radius 3s units. A right circular cylinder has height 4 times its radius, which is a units Te tio of the volue of the eylinder to the splere is 1:9 B. Consider a circle with dismeter dunits and a sare with diagonal d units. Ifa y crauls romd the circle ance and an ant crawls romd the square once, the fly travels further (A caknlator is allowed.) C. The volume of a right cireulsr cone with height 15 em is the same as the volame of a right cirlar cylinder with height 5 cm, if they both have the same radius 3. Only C 1 Oly A 4 Oly A and C 2 Ouly B 5. A, B and C Question 11 If the radius of a circle is increased by 6% then its area is increased by 3,6% 6% 12.36% 36% 0,3% 2 3- 4. 5 Question 12 Consider the figare below. Which of the folowing statements is/are true? A If we draw CF o that Fies on AD and EA || CF, then AABE ACDF B. In ABAE. AE AB+BE. C. If the area oft AABE-7 cm and EC-3BE then the area of ABCD is 42 c 1Oly A 4 Oly A and C 2 Ouly B 3. Only C 5 A. B nd C Question 13 ca a The coataier illbastrated above is a ectangular box with a half-cylinder lid. If the lid is detached and turned over so that it lies inside the box, how ach liquid (in tes) can the bo coatain with the d in this pceition (excludng the lid)? 46 MAT0511/101/0/2019 1 (ake-) 10(ale-) 10(-e) 2. 10- 1 10-3 10-(afe-) 5 -

please help with all questions not partly

Answer 1

lo A sphere, radis = 3a volume u tri = - اب 4 * (32) (272) ماما v = 36 Ta3 cylinder, radies = a height = 40 volume = Tr²h = ₂ = T(a) (4a) 4TQ3 V₂: V = ₂ = 4TQ3 36 Taº 이- ₂ : V = 1:9 It is true

B) calle, diameter d. Circumference - Td z 3.14d Square, diagonal d' x²+x² = d² 2x²= d² x = fan = .: Perimeter = 4x = 2.82d Here fly travels further ( ш.

( Volume of Cone = 1 Treth = 1 a 4² (15) 5 TT - Volume of Cylender - Teh - Trh(s) = Sar² Radius is same, : It is True . option 5 All are True