Question

2. An angle formed by intersecting two lines measures 35°. Find the measure of remaining all angles

3. PQR is a triangle, right angled at P. If PQ = 10 cm and PR = 24 cm, Find QR.

4. The teacher tells the class that the highest marks obtained by a student in her class is twice the lowest marks plus 7. The highest score is 87. What is the lowest score?​

Answer 1

Answer:

2. as shown in the picture

3.Let the RQ be x cm,

In right angle triangle PQR,

h^2\ =\ b^2+p^2

QR^2\ =\ PQ^2\ +PR^2\

x^2=\ \left(10\right)^2+\left(24\right)^2

x^2\ =\ 100\ +576

x\ =\ \sqrt{100+576}

x\ =\ \sqrt{676}

x = 26 cm

Thus, the length of QR is 26cm.

4. Let's assume the lowest mark is

′

x

′

.

twice the lowest mark will be 2x

given that twice the lowest marks plus seven is highest mark.

=> 2x+7=87

=>2x=80

=>x=40

Hence the lowestmark is 40.

Step-by-step explanation:

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