Question
Read each sentence to find out whether there is any
error in it. The error, if any, will be in one part of the sentence. Mark the part with the error as your answer. If there is no error, mark "No Error" as your answer. (Ignore the errors of punctuation).Solution
Replace incident with incidence. ‘incident means occurence’ whereas ‘incidence’ means frequency. Reducing the incidence of fatal or crippling disease calls for robust medical infrastructure, which governments can create quickly, if they have the will.
The radius of a circle is 7 cm. Find the area of the sector formed by a central angle of 90°.
Find the area of a circle of radius 7 cm. (Take π = 22/7)
In a circle AB is diameter & C is a point on circumference such that AC = 13 cm & BC = 84 cm then find the area of circle ?
- What is the area of a circle whose radius is equal to the length of a cube’s edge, if the cube's total surface area is 1,944 cm²? (Take π = 3)
The diameter of a circular field is 28 m. Find its circumference and area. (Take π = 22/7)
In the figure given below, a circle is inscribed in a triangle ABC. If AB = 18 cm, BC = 14 cm and AC = 16 cm, then find the length of YC.
A sector of a circle has a central angle of 60°. If the radius of the circle is 14 cm, what is the area of the sector?
In a circle, two chords AB & CD are produced at P which is outside the circle . If PA= 18 cm, AB= 12 cm , PC = 6 cm then find CD.
The minute hand of a clock is 28cm long. Find the area on the face of the clock swept by the minute hand between 8 a.m. and 8: 45a.m
A circle has radius 13 cm. A chord is 10 cm long. What is the perpendicular distance from the centre to the chord?