Question

Please give correct answers ​

Answer 1

Answer:

hey here are your answers

so pls mark it as brainliest

I have solved all questions but not in detail

Q1 Q4 are solved in detail but rest 2 I have given you some clues so pls follow

Step-by-step explanation:

Q.11

so here quadrilateral abcd is a cyclic quadrilateral

so moreover here angle bac and angle bdc both intercepts same arc ie arc bc on circumference of circle and hence are inscribed in same arc

so thus

so we know that

Angles inscribed in same arc are equal

so thus angle bac=angle bdc=45 degrees

moreover here angle dbc=55 degrees

so by applying angle sum property on triangle dcb

we get henceforth as

angle bcd=80 degrees

Q.12

use first perimter as sum of all sides and substitute given values

you would get remaining side as 13 cm

so use herons formula by computing s ie semiperimeter which would be 16.cm

Q.13

use formula

curved surface area of cylinder=2pi.r h and substitute given values

and then after getting r use diameter=2r

Q.14

a coin is tossed 1000 times

so let sample space be S

hence then

n(S)=1000

moreover let A be the event so as to get heads and similarly let B be the event so as to get tails

so here n(A)=455

n(B)=545

so using

P(A)=n(A)/n(S)

=455/1000

=91/200

P(B)=n(B)/n(S)

=545/1000

=109/200