Exercise 11.1
1) Draw a line segment of length 7.6 cm and divide it in 5: 8 ration. In addition, find the measure of two parts.
Solution:
Procedure for construction:
1. In the figure, PQ is a chord of a circle and PT is the tangent at P such that ∠QPT = 60°. Then find the measure of ∠PRQ.
Solution.
Since OP is perpendicular to PT.
∠OPT = 90°
∠OPQ = 90°- ∠QPT
∠OPQ = 90 – 60 = 30°.
In ΔOPQ, […]
Central Board of Secondary Education (CBSE) will conduct the All India Premedical / Pre-Dental Entrance Test 2017, commonly referred as NEET Exam, in the first week of May 2017 in pen and paper mode. The images of response sheets and official answer keys of NEET 2017 Exam will be issued on the official website of NEET within one […]
NEET (National Eligibility cum Entrance Test) is a qualifying entrance test conducted pan-India for students aspiring to pursue any medical courses at the graduate level like MBBS and BDS and also for some postgraduate courses in few selected medical colleges in India. For the graduate level courses, students passing […]
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These Mock Tests has […]
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1. If sun’s elevation is 45°. Find the length of the shadow of a pole of height 8 m.
In rt. Δ PQR, ∠B=90° and ∠
Exercise 8.1
Q1) In △ABC , 90∘ at B, AB=24cm, BC = 7cm.
Determine:
(i)sin(A), cos(A)
(ii) sin(C), cos(C)
Ans.) In
1. If the point A (x , y) is equidistant from B (4 , 2) and C (-2 , 4). Find the relation between x and y.
|AB| = (x−5)
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