ANGLE θ (°)
ACTIVE
SIDE VALUE
TAP
—
AUTO
RESULTS
AUTO
WORKING
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RIGHT TRIANGLE
Enter θ and one side
Choose GIVEN side type
sinθ = opp/hyp
cosθ = adj/hyp
tanθ = opp/adj
SINE RULE
Given A, B and side a
a/sinA = b/sinB
C = 180 − A − B
EXAMPLE (SINE)
A=40°, B=60°, a=12
b = 12·sin60/sin40
COSINE RULE
Given b, c and angle A
a²=b²+c²−2bc·cosA
a = √(a²)
KEYS
NEXT switches box
BS deletes • CLR clears
C resets • ENTER solves
I help • P back
ROUNDING
Use ROUND dropdown
Angles shown in degrees
PAGE 2/2
ANGLE θ (°)
ACTIVE
SIDE VALUE
TAP
—
AUTO
RESULTS
AUTO
WORKING
—
—
—
—
—
—
—
PAGE 1/2
RIGHT TRIANGLE
Enter θ and one side
Choose GIVEN side type
sinθ = opp/hyp
cosθ = adj/hyp
tanθ = opp/adj
SINE RULE
a/sinA = b/sinB
C = 180 − A − B
EXAMPLE
A=40°, B=60°, a=12
b = 12·sin60/sin40
COSINE RULE
a²=b²+c²−2bc·cosA
a = √(a²)
KEYS
NEXT switches box
BS deletes • CLR clears
C resets • ENTER solves
ROUND
Use ROUND dropdown
Angles in degrees
PAGE 2/2