हिंदी
तमिलनाडु बोर्ड ऑफ सेकेंडरी एज्युकेशनएसएसएलसी (अंग्रेजी माध्यम) कक्षा ७

Construct a triangle PQR with given conditions. ∠P = 115°, ∠Q = 40° and PQ = 6 cm - Mathematics

Advertisements
Advertisements

प्रश्न

Construct a triangle PQR with given conditions.

∠P = 115°, ∠Q = 40° and PQ = 6 cm

आकृति
Advertisements

उत्तर



Construction:

Step 1: Drawn a line. Marked P and Q on the line such that PQ = 6 cm.

Step 2: At P, drawn O ray PX making an angle of 115° with PQ.

Step 3: At Q, drawn another ray QY making an angle of 40° with PQ.

Marked the point of intersection of the rays PX and Q Y as R.

PQR is the required triangle.

shaalaa.com
  क्या इस प्रश्न या उत्तर में कोई त्रुटि है?
अध्याय 4: Geometry - Exercise 4.2 [पृष्ठ ८५]

APPEARS IN

सामाचीर कलवी Mathematics - Term 2 [English] Class 7 TN Board
अध्याय 4 Geometry
Exercise 4.2 | Q 7. III. (ii) | पृष्ठ ८५

संबंधित प्रश्न

Given below are measurements of some parts of two triangles. Examine whether the two triangles are congruent or not, by using the SAS congruence rule. If the triangles are congruent, write them in symbolic form.

∆ABC, AB = 4.5 cm, AC = 4 cm, ∠A = 60°.

∆DEF, DE = 4 cm, FD = 4.5 cm, ∠D = 55°.


Consider the given pairs of triangles and say whether each pair is that of congruent triangles. If the triangles are congruent, say ‘how’; if they are not congruent say ‘why’ and also say if a small modification would make them congruent:


Construct a triangle ABC with given conditions.

AB = 7 cm, AC = 6.5 cm and ∠A = 120°


Construct a triangle PQR with given conditions.

∠Q = 90°, ∠R = 42° and QR = 5.5 cm


In ∆ABC and ∆PQR, ∠A = 50° = ∠P, PQ = AB, and PR = AC. By which property ∆ABC and ∆PQR are congruent?


Using the given figure, prove that the triangles are congruent. Can you conclude that AC is parallel to DE


In the following figure, ΔPQR ≅ Δ ______.


In the following figure, which pairs of triangles are congruent by SAS congruence criterion (condition)? if congruent, write the congruence of the two triangles in symbolic form.


In the following figure, which pairs of triangles are congruent by SAS congruence criterion (condition)? if congruent, write the congruence of the two triangles in symbolic form.


In the following figure, which pairs of triangles are congruent by SAS congruence criterion (condition)? if congruent, write the congruence of the two triangles in symbolic form.


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×